Malicious PDF — malware analysis report

Static analysis result for SHA-256 db15d56b0ac73a8c…

MALICIOUS

PDF

75.1 KB Created: 2021-04-02 12:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 91ec4b2c182861c0c59a4a17c0ea0a33 SHA-1: 2de79dfbbd6a45899bca9fbfa1250c02a7ea5705 SHA-256: db15d56b0ac73a8c1716347a93c3e55bac8c8cdd145728916e531570c594d72f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/123?utm_term=axis+edwardsville+tv+guide PDF link annotation
    • http://bamupiwabibajew.mywebcommunity.org/institute_admission_form_format.pdfIn PDF document text
    • http://dimopun.mywebcommunity.org/14611320945.pdfIn PDF document text
    • http://skywonder.space/adorns_condensed_sans_freeeotvv.pdfIn PDF document text
    • http://harmony-market.ru/classic_wow_hunter_guide_pvpkbtub.pdfIn PDF document text
    • http://raxawevamavox.getenjoyment.net/english_to_gujarati_dictionary_free_download_for_pc.pdfIn PDF document text
    • http://belkwigs.com/roborukonarotimatag7w9ad.pdfIn PDF document text
    • http://2020coupons.info/fopodarudole9wwcs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473890/normal_6051f1d30f6b0.pdfIn PDF document text
    • http://topchambre.xyz/john_maxwell_books_2020o35km.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479454/normal_5ffccb9b8a1e0.pdfIn PDF document text
    • http://jumpfs.space/62473107287k509r.pdfIn PDF document text
    • http://dafagaketa.sportsontheweb.net/34195123008.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454041/normal_60091be0b6886.pdfIn PDF document text
    • http://gayerkan.com/bernard_lewis_ortadouzplz0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wolina/84108782145.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/84080818697.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/58156635010.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/11739294246.pdfIn PDF document text
    • http://rewuwuja.onlinewebshop.net/sociology_textbook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/carlyle_saskatchewan_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/aj_android_gamer_gta_5.pdfIn PDF document text
    • http://kavezusi.onlinewebshop.net/tp-link_tl-wa850re_router_review.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE1 4868 bytes
SHA-256: 7e4634d545a863952f14b2be67c29267c395aef33853f0b50028da2c786d4a6a
font_01_sfnt_off0000eb90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB90 11124 bytes
SHA-256: 674efbbe07b23dafa35d35d19a7d18b1a0553ad618e953d53f0bcfa205b2267a
font_02_sfnt_off000110af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110AF 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34